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https://issues.apache.org/jira/browse/HIVE-15428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15748659#comment-15748659
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Rui Li commented on HIVE-15428:
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The reason why we didn't see this before is related to how we generate the
GenericUDFIn. DPP is created for UDF like {noformat}GenericUDFIn(Column[ds],
RS[12]){noformat} and is not created if the joining column is resolved to
constant like {noformat}GenericUDFIn(Const string 2008-04-08, RS[11]){noformat}
Previously we had one UDF resolved like above, so we only created one DPP.
Anyway our code needs to be robust to handle both cases. I'll upload a patch to
add cycle detection.
> HoS DPP doesn't remove cyclic dependency
> ----------------------------------------
>
> Key: HIVE-15428
> URL: https://issues.apache.org/jira/browse/HIVE-15428
> Project: Hive
> Issue Type: Bug
> Reporter: Rui Li
> Assignee: Rui Li
>
> More details in HIVE-15357
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